Gireadă Roxana, Ursache Alexandra, Matasariu Roxana, Socolov Răzvan
Department of Obstetrics and Gynecology, University of Medicine and Pharmacy "Gr. T. Popa", 700115 Iaşi, Romania.
Diagnostics (Basel). 2022 Jun 15;12(6):1469. doi: 10.3390/diagnostics12061469.
Atrial septal aneurysm (ASA) is a rarely reported fetal finding. Its definition is variable, but the diagnosis is usually made when the foramen ovale flap extends at least halfway across the left atrium. It is considered a transient, self-limiting condition, but on occasion, it can be complicated by fetal arrhythmia or left ventricular (LV) inflow obstruction-if longstanding, this can lead to left heart hypoplasia. We present two cases of ASA diagnosed at the second trimester scan, one of which was subsequently complicated by LV inflow obstruction and prenatal suspicion of hypoplastic aortic arch. This report is a good illustration of how structure follows function: a small LV preload can lead to a decreased LV output, which in turn will end up in a hypoplastic LV and outflow tract-all this is reversible after birth, due to the physiological circulatory modifications that occur in the newborn.
房间隔瘤（ASA）是一种报道较少的胎儿检查结果。其定义存在差异，但通常在卵圆孔瓣延伸至左心房至少一半时作出诊断。它被认为是一种短暂的、自限性疾病，但偶尔会并发胎儿心律失常或左心室（LV）流入道梗阻——如果长期存在，可能导致左心发育不全。我们报告两例在孕中期超声检查时诊断出的ASA病例，其中一例随后并发LV流入道梗阻，并在产前怀疑主动脉弓发育不全。本报告很好地说明了结构如何随功能变化：左心室前负荷小会导致左心室输出量减少，进而导致左心室和流出道发育不全——由于新生儿发生的生理性循环改变，所有这些在出生后都是可逆的。
